The Bund Naturschutz is once again calling for participants nationwide to take part in the Bumblebee Challenge this year, from June 20 to July 3. Who’s joining in? You can post your photos on the Obsidentify app or on your computer at observation.org. I’ve already photographed the first four species today: Photos 1 and 2: the tree bumblebee; Photo 3: the ground bumblebee; Photos 4 and 5: the meadow bumblebee; and Photo 6: the field bumblebee. But I’m sure there will be more in the coming days 😀!